Does anyone have any magic tricks for cleaning the speakers/earpiece on your phone? I like to keep mine clean and gunk free, so I take it out of the Commuter every couple of weeks for a freshen up. I've noticed the speakers and earpiece end up with some dust/dirt/gunk in them. I try to get most of it out with canned air, but I also use a very small amount of rubbing alcohol on a Q-Tip to clean out the rest. Is this an OK thing to do? Or is there a better and safer way to clean them out? I'm just a little worried that the rubbing alcohol is going to be bad for it in the long run.